/**
Js获取当前日期时间及其它操作

var myDate = new Date();
myDate.getYear();        //获取当前年份(2位)
myDate.getFullYear();    //获取完整的年份(4位,1970-????)
myDate.getMonth();       //获取当前月份(0-11,0代表1月)
myDate.getDate();        //获取当前日(1-31)
myDate.getDay();         //获取当前星期X(0-6,0代表星期天)
myDate.getTime();        //获取当前时间(从1970.1.1开始的毫秒数)
myDate.getHours();       //获取当前小时数(0-23)
myDate.getMinutes();     //获取当前分钟数(0-59)
myDate.getSeconds();     //获取当前秒数(0-59)
myDate.getMilliseconds();    //获取当前毫秒数(0-999)
myDate.toLocaleDateString();     //获取当前日期
var mytime=myDate.toLocaleTimeString();     //获取当前时间
myDate.toLocaleString( );        //获取日期与时间



日期时间脚本库方法列表

Date.prototype.isLeapYear 判断闰年
Date.prototype.Format 日期格式化
Date.prototype.DateAdd 日期计算
Date.prototype.DateDiff 比较日期差
Date.prototype.toString 日期转字符串
Date.prototype.toArray 日期分割为数组
Date.prototype.DatePart 取日期的部分信息
Date.prototype.MaxDayOfDate 取日期所在月的最大天数
Date.prototype.WeekNumOfYear 判断日期所在年的第几周
StringToDate 字符串转日期型
IsValidDate 验证日期有效性
CheckDateTime 完整日期时间检查
daysBetween 日期天数差
*/
//---------------------------------------------------
// 判断闰年
//---------------------------------------------------
Date.prototype.isLeapYear = function() {
    return (0 == this.getYear() % 4 && ((this.getYear() % 100 != 0) || (this.getYear() % 400 == 0)));
}

//---------------------------------------------------
// 日期格式化
// 格式 YYYY/yyyy/YY/yy 表示年份
// MM/M 月份
// W/w 星期
// dd/DD/d/D 日期
// hh/HH/h/H 时间
// mm/m 分钟
// ss/SS/s/S 秒
//---------------------------------------------------
Date.prototype.Format = function(formatStr) {
    var str = formatStr;
    var Week = ['日', '一', '二', '三', '四', '五', '六'];

    str = str.replace(/yyyy|YYYY/, this.getFullYear());
    str = str.replace(/yy|YY/, (this.getYear() % 100) > 9 ? (this.getYear() % 100).toString() : '0' + (this.getYear() % 100));

    str = str.replace(/MM/, this.getMonth() > 9 ? this.getMonth().toString() : '0' + this.getMonth());
    str = str.replace(/M/g, this.getMonth());

    str = str.replace(/w|W/g, Week[this.getDay()]);

    str = str.replace(/dd|DD/, this.getDate() > 9 ? this.getDate().toString() : '0' + this.getDate());
    str = str.replace(/d|D/g, this.getDate());

    str = str.replace(/hh|HH/, this.getHours() > 9 ? this.getHours().toString() : '0' + this.getHours());
    str = str.replace(/h|H/g, this.getHours());
    str = str.replace(/mm/, this.getMinutes() > 9 ? this.getMinutes().toString() : '0' + this.getMinutes());
    str = str.replace(/m/g, this.getMinutes());

    str = str.replace(/ss|SS/, this.getSeconds() > 9 ? this.getSeconds().toString() : '0' + this.getSeconds());
    str = str.replace(/s|S/g, this.getSeconds());

    return str;
}

//+---------------------------------------------------
//| 求两个时间的天数差 日期格式为 YYYY-MM-dd
//+---------------------------------------------------

function daysBetween(DateOne, DateTwo) {
    var OneMonth = DateOne.substring(5, DateOne.lastIndexOf('-'));
    var OneDay = DateOne.substring(DateOne.length, DateOne.lastIndexOf('-') + 1);
    var OneYear = DateOne.substring(0, DateOne.indexOf('-'));

    var TwoMonth = DateTwo.substring(5, DateTwo.lastIndexOf('-'));
    var TwoDay = DateTwo.substring(DateTwo.length, DateTwo.lastIndexOf('-') + 1);
    var TwoYear = DateTwo.substring(0, DateTwo.indexOf('-'));

    var cha = ((Date.parse(OneMonth + '/' + OneDay + '/' + OneYear) - Date.parse(TwoMonth + '/' + TwoDay + '/' + TwoYear)) / 86400000);
    return Math.abs(cha);
}


//+---------------------------------------------------
//| 日期计算
//+---------------------------------------------------
Date.prototype.DateAdd = function(strInterval, Number) {
    var dtTmp = this;
    switch (strInterval) {
        case 's':
            return new Date(Date.parse(dtTmp) + (1000 * Number));
        case 'n':
            return new Date(Date.parse(dtTmp) + (60000 * Number));
        case 'h':
            return new Date(Date.parse(dtTmp) + (3600000 * Number));
        case 'd':
            return new Date(Date.parse(dtTmp) + (86400000 * Number));
        case 'w':
            return new Date(Date.parse(dtTmp) + ((86400000 * 7) * Number));
        case 'q':
            return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number * 3, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
        case 'm':
            return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
        case 'y':
            return new Date((dtTmp.getFullYear() + Number), dtTmp.getMonth(), dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
    }
}

//+---------------------------------------------------
//| 比较日期差 dtEnd 格式为日期型或者有效日期格式字符串
//+---------------------------------------------------
Date.prototype.DateDiff = function(strInterval, dtEnd) {
    var dtStart = this;
    if (typeof dtEnd == 'string') //如果是字符串转换为日期型
    {
        dtEnd = StringToDate(dtEnd);
    }
    switch (strInterval) {
        case 's':
            return parseInt((dtEnd - dtStart) / 1000);
        case 'n':
            return parseInt((dtEnd - dtStart) / 60000);
        case 'h':
            return parseInt((dtEnd - dtStart) / 3600000);
        case 'd':
            return parseInt((dtEnd - dtStart) / 86400000);
        case 'w':
            return parseInt((dtEnd - dtStart) / (86400000 * 7));
        case 'm':
            return (dtEnd.getMonth() + 1) + ((dtEnd.getFullYear() - dtStart.getFullYear()) * 12) - (dtStart.getMonth() + 1);
        case 'y':
            return dtEnd.getFullYear() - dtStart.getFullYear();
    }
}

//+---------------------------------------------------
//| 日期输出字符串，重载了系统的toString方法
//+---------------------------------------------------
Date.prototype.toString = function(showWeek) {
    var myDate = this;
    var str = myDate.toLocaleDateString();
    if (showWeek) {
        var Week = ['日', '一', '二', '三', '四', '五', '六'];
        str += ' 星期' + Week[myDate.getDay()];
    }
    return str;
}

//+---------------------------------------------------
//| 日期合法性验证
//| 格式为：YYYY-MM-DD或YYYY/MM/DD
//+---------------------------------------------------

function IsValidDate(DateStr) {
    var sDate = DateStr.replace(/(^\s+|\s+$)/g, ''); //去两边空格;
    if (sDate == '') return true;
    //如果格式满足YYYY-(/)MM-(/)DD或YYYY-(/)M-(/)DD或YYYY-(/)M-(/)D或YYYY-(/)MM-(/)D就替换为''
    //数据库中，合法日期可以是:YYYY-MM/DD(2003-3/21),数据库会自动转换为YYYY-MM-DD格式
    var s = sDate.replace(/[\d]{ 4,4 }[\-/]{ 1 }[\d]{ 1,2 }[\-/]{ 1 }[\d]{ 1,2 }/g, '');
    if (s == '') //说明格式满足YYYY-MM-DD或YYYY-M-DD或YYYY-M-D或YYYY-MM-D
    {
        var t = new Date(sDate.replace(/\-/g, '/'));
        var ar = sDate.split(/[-/:]/);
        if (ar[0] != t.getYear() || ar[1] != t.getMonth() + 1 || ar[2] != t.getDate()) {
            //alert('错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。');
            return false;
        }
    } else {
        //alert('错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。');
        return false;
    }
    return true;
}

//+---------------------------------------------------
//| 日期时间检查
//| 格式为：YYYY-MM-DD HH:MM:SS
//+---------------------------------------------------

function CheckDateTime(str) {
    var reg = /^(\d+)-(\d{ 1,2 })-(\d{ 1,2 }) (\d{ 1,2 }):(\d{ 1,2 }):(\d{ 1,2 })$/;
    var r = str.match(reg);
    if (r == null) return false;
    r[2] = r[2] - 1;
    var d = new Date(r[1], r[2], r[3], r[4], r[5], r[6]);
    if (d.getFullYear() != r[1]) return false;
    if (d.getMonth() != r[2]) return false;
    if (d.getDate() != r[3]) return false;
    if (d.getHours() != r[4]) return false;
    if (d.getMinutes() != r[5]) return false;
    if (d.getSeconds() != r[6]) return false;
    return true;
}

//+---------------------------------------------------
//| 把日期分割成数组
//+---------------------------------------------------
Date.prototype.toArray = function() {
    var myDate = this;
    var myArray = Array();
    myArray[0] = myDate.getFullYear();
    myArray[1] = myDate.getMonth();
    myArray[2] = myDate.getDate();
    myArray[3] = myDate.getHours();
    myArray[4] = myDate.getMinutes();
    myArray[5] = myDate.getSeconds();
    return myArray;
}

//+---------------------------------------------------
//| 取得日期数据信息
//| 参数 interval 表示数据类型
//| y 年 m月 d日 w星期 ww周 h时 n分 s秒
//+---------------------------------------------------
Date.prototype.DatePart = function(interval) {
    var myDate = this;
    var partStr = '';
    var Week = ['日', '一', '二', '三', '四', '五', '六'];
    switch (interval) {
        case 'y':
            partStr = myDate.getFullYear();
            break;
        case 'm':
            partStr = myDate.getMonth() + 1;
            break;
        case 'd':
            partStr = myDate.getDate();
            break;
        case 'w':
            partStr = Week[myDate.getDay()];
            break;
        case 'ww':
            partStr = myDate.WeekNumOfYear();
            break;
        case 'h':
            partStr = myDate.getHours();
            break;
        case 'n':
            partStr = myDate.getMinutes();
            break;
        case 's':
            partStr = myDate.getSeconds();
            break;
    }
    return partStr;
}

//+---------------------------------------------------
//| 取得当前日期所在月的最大天数
//+---------------------------------------------------
Date.prototype.MaxDayOfDate = function() {
    var myDate = this;
    var ary = myDate.toArray();
    var date1 = (new Date(ary[0], ary[1] + 1, 1));
    var date2 = date1.dateAdd(1, 'm', 1);
    var result = dateDiff(date1.Format('yyyy-MM-dd'), date2.Format('yyyy-MM-dd'));
    return result;
}


//+---------------------------------------------------
//| 字符串转成日期类型
//| 格式 MM/dd/YYYY MM-dd-YYYY YYYY/MM/dd YYYY-MM-dd
//+---------------------------------------------------

function StringToDate(DateStr) {

    var converted = Date.parse(DateStr);
    var myDate = new Date(converted);
    if (isNaN(myDate)) {
        //var delimCahar = DateStr.indexOf('/')!=-1?'/':'-';
        var arys = DateStr.split('-');
        myDate = new Date(arys[0], --arys[1], arys[2]);
    }
    return myDate;
}



//若要显示:当前日期加时间(如:2009-06-12 12:00)

function CurentTime() {
    var now = new Date();

    var year = now.getFullYear(); //年
    var month = now.getMonth() + 1; //月
    var day = now.getDate(); //日

    var hh = now.getHours(); //时
    var mm = now.getMinutes(); //分
    var ss = now.getSeconds(); //获取当前秒数(0-59)

    var clock = year + "-";

    if (month < 10) clock += "0";

    clock += month + "-";

    if (day < 10) clock += "0";

    clock += day + " ";

    if (hh < 10) clock += "0";

    clock += hh + ":";
    if (mm < 10) clock += '0';
    clock += mm + ":";
    if (ss < 10) clock += "0";
    clock += ss;
    return (clock);
}
/*getLastMonthYestdy(new Date()); //获得上个月在昨天这一天的日期  
getLastMonthYestdy(new Date(2012,6-1,2)); //获取2012-6-2前一个月在前一天的日期  */
function getLastMonthYestdy(date) {
    var daysInMonth = new Array([0], [31], [28], [31], [30], [31], [30], [31], [31], [30], [31], [30], [31]);
    var strYear = date.getFullYear();
    var strDay = date.getDate();
    var strMonth = date.getMonth() + 1;
    var hh = date.getHours(); //时
    var mm = date.getMinutes(); //分
    var ss = date.getSeconds(); //获取当前秒数(0-59)
    if (strYear % 4 == 0 && strYear % 100 != 0) {
        daysInMonth[2] = 29;
    }
    if (strMonth - 1 == 0) {
        strYear -= 1;
        strMonth = 12;
    } else {
        strMonth -= 1;
    }
    strDay = daysInMonth[strMonth] >= strDay ? strDay : daysInMonth[strMonth];
    if (strMonth < 10) {
        strMonth = "0" + strMonth;
    }
    if (strDay < 10) {
        strDay = "0" + strDay;
    }
    if (hh < 10) {
        hh = "0" + hh;
    }
    if (mm < 10) {
        mm = "0" + mm;
    }
    if (ss < 10) {
        ss = "0" + ss;
    }
    return strYear + "-" + strMonth + "-" + strDay + " " + hh + ":" + mm + ":" + ss;
}
/**
getEod("y");//获取昨天日期 即当前时间前一天  
getEod("y","2012-6-1");//获取2012-6-1前一天的日期  
getEod("t");//获取明天日期 即当前时间后一天  
getEod("t","2012-6-30");//获取2012-6-30后一天的日期
 */
function getEod(yt, date) {
    if (date) {
        var a_date = date.split("-");
        date = new Date(a_date[0], a_date[1] - 1, a_date[2]);
    } else {
        date = new Date();
    }
    var i_milliseconds = date.getTime();
    if (yt == "y") {
        i_milliseconds -= 1000 * 60 * 60 * 24;
    } else {
        i_milliseconds += 1000 * 60 * 60 * 24;
    }
    var t_date = new Date();
    t_date.setTime(i_milliseconds);
    var i_year = t_date.getFullYear();
    var i_month = ("0" + (t_date.getMonth() + 1)).slice(-2);
    var i_day = ("0" + t_date.getDate()).slice(-2);
    return i_year + "-" + i_month + "-" + i_day;
}

/*getLastYearYestdy(new Date()); //获得上一年在昨天这一天的日期  
getLastYearYestdy(new Date(2012, 6 - 1, 2)); //获取2012-6-2前一个月在前一天的日期*/
function getLastYearYestdy(date) {
    var strYear = date.getFullYear() - 1;
    var strDay = ("0" + date.getDate()).slice(-2);
    var strMonth = ("0" + (date.getMonth() + 1)).slice(-2);
    return strYear + "-" + strMonth + "-" + strDay;
}
//获取日期在当年中的周数  

function getYearWeek(date) {
    date = new Date(date.replace(/-/g, "/"));
    var date2 = new Date(date.getFullYear(), 0, 1);
    var d = Math.round((date.getTime() - date2.getTime() + (date2.getDay() - date.getDay()) * (24 * 60 * 60 * 1000)) / 86400000);
    return Math.ceil(d / 7) + 1;
}

/* 得到日期年月日等加数字后的日期 
    var d = new Date("2012/2/29");
alert(d.dateAdd("y", 3));
*/
Date.prototype.dateAdd = function(interval, number) {
    var d = this;
    var k = {
        "y": "FullYear",
        "q": "Month",
        "m": "Month",
        "w": "Date",
        "d": "Date",
        "h": "Hours",
        "n": "Minutes",
        "s": "Seconds",
        "ms": "MilliSeconds"
    };
    var n = {
        "q": 3,
        "w": 7
    };
    d.setFullYear(d.getFullYear() + 18);
    eval("d.set" + k[interval] + "(d.get" + k[interval] + "()+" + ((n[interval] || 1) * number) + ")");
    return d;
};

/* 计算两日期相差的日期年月日等 */
Date.prototype.dateDiff = function(interval, objDate) {
    var d = this,
        t = d.getTime(),
        t2 = objDate.getTime(),
        i = {};
    i["y"] = objDate.getFullYear() - d.getFullYear();
    i["q"] = i["y"] * 4 + Math.floor(objDate.getMonth() / 4) - Math.floor(d.getMonth() / 4);
    i["m"] = i["y"] * 12 + objDate.getMonth() - d.getMonth();
    i["ms"] = objDate.getTime() - d.getTime();
    i["w"] = Math.floor((t2 + 345600000) / (604800000)) - Math.floor((t + 345600000) / (604800000));
    i["d"] = Math.floor(t2 / 86400000) - Math.floor(t / 86400000);
    i["h"] = Math.floor(t2 / 3600000) - Math.floor(t / 3600000);
    i["n"] = Math.floor(t2 / 60000) - Math.floor(t / 60000);
    i["s"] = Math.floor(t2 / 1000) - Math.floor(t / 1000);
    return i[interval];
};

//从身份证里计算年龄  
//alert(getAgeFromCard("440222199504162213")); 
var getAgeFromCard = function (id) {  
    if(/^\d{18}$/.test(id)){ //简单过滤  
        var re = /^(\d{4})(\d{2})(\d{2})$/i,r = id.match(re);  
        var d=new Date(),n=new Date(2000, d.getMonth()+1, d.getDate()) > new Date(2000, r[2], r[3])?0:-1;  
        return d.getFullYear()-r[1]+n;  
    }else{  
        alert("身份证错误!");  
        return 0;  
    }  
};  
